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Displaying 551 - 575 of 1947

Open Issues in Secure DNS Deployment

October 6, 2009
Author(s)
Ramaswamy Chandramouli, Scott W. Rose
This paper describes some practical administrative issues and challenges in the deployment of DNSSEC - an IETF specified suite of security measures for securing the Domain Name System (DNS). The issues covered include: (a) Choice of Cryptographic

UML 2 Activity and Action Models

July 1, 2003
Author(s)
Conrad E. Bock
This is the first in a series introducing the activity model in the Unified Modeling Language, version 2 (UML 2), and how it integrates with the action model [1]. The series is a companion to the standard, providing additional background, rationale

Technical Digest Symposium on Optical Fiber Measurements, 2002

September 1, 2002
Author(s)
Paul A. Williams, Gordon W. Day
This digest contains the papers presented at the 2002 Symposium on Optical Fiber Measurements, a 2-1/2 day forum devoted to measurements of fibers, integrated optics, components and systems. Topics covered include measurement of polarization-mode

Proceedings of the 12th Halon Options Technical Working Conference

June 1, 2002
Author(s)
Richard G. Gann
This proceedings contains the papers from the 12th Halon Options Technical Working Conference. The topics covered include: results from the DoD Next Generation Fire Suppression Technology Program, total flood applications, passive fire protection

Noise-Source Stability Measurements

May 1, 2000
Author(s)
James P. Randa, L. A. Terrell, Lawrence P. Dunleavy
We report results of stability tests on several noise sources for selected frequencies between 12 and 26.5 GHz. Measurements covered intervals of about 1 week and about 1 year or more. Drifts in noise temperature were typically less than the uncertainty of

Technical Accomplishments: Information Technology Laboratory 1998

October 1, 1998
Author(s)
Elizabeth B. Lennon, K K. Simon
The 1998 ITL Technical Accomplishments report documents the activities and achievements of the Information Technology Laboratory, a research component of the National Institute of Standards and Technology. Covering fiscal year 1998, the report presents an

Impact of Test and Foam Design on Smoldering

May 14, 2013
Author(s)
Mauro Zammarano, Szabolcs Matko, Rick D. Davis
Smoldering propensity of fabrics used in upholstered furniture can be assessed using foam mockups according to the CPSC proposed regulation. This approach requires a polyurethane flexible foam with reproducible and well- characterized smoldering. The

Dual-wavelength transfer standard for laser peak-power measurement

May 9, 2011
Author(s)
Rodney W. Leonhardt, Daniel King
The National Institute of Standards and Technology (NIST) and the Naval Surface Warfare Center – Corona Division (NSWC) have jointly developed a low-level peak-power radiometer (D-ESR) which functions as a transfer standard for measuring laser pulses at

The NIST Charpy V-Notch Verification Program: Overview and Operating Procedures

September 1, 2003
Author(s)
Christopher N. McCowan, Thomas A. Siewert, D P. Vigliotti
Charpy impact testing is often specified as ,in acceptance test for structural materials, and companies performing acceptance tests are typically required to verify the performance of their impact machine periodically. The procedure for verifying the

The International Institute of Welding: Report on 1998 Actions

May 3, 1999
Author(s)
Thomas A. Siewert
Commission V covers issues of weld inspection and quality control for the International Institute of Welding (IIW). This report summarizes the information presented at the 1998 Annual Assembly: descriptions of both research and draft ISO standards being

Are additive manufacturing systems accurately delivering laser power?

September 12, 2022
Author(s)
Brian Simonds, Kyle Rogers, Paul A. Williams
At the core of most metal additive manufacturing (AM) systems is a high-power (100-1000 W) laser. The delivered light energy drives the entire AM process by determining the melt volume and maximum temperature, which ultimately dictates solidification and
Displaying 551 - 575 of 1947
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